 | Anton Staus was a German astronomer. As a young man, he discovered an asteroid 335 Roberta. more » |
 | Antonia Maury was an American astronomer who published an important early catalog of stellar... more » |
 | Antonie Pannekoek was a Dutch astronomer, Marxist theorist, and social revolutionary. He was one... more » |
 | Antonín Mrkos was a Czech astronomer, born in Střemchoví, Czechoslovakia. more » |
 | Antonio Abetti was an Italian astronomer. Born in San Pietro di Gorizia, he earned a degree in... more » |
 | Antonio de Ulloa y de la Torre-Girault was a Spanish general, explorer, author, astronomer,... more » |
| Antonio Vagnozzi is an amateur Italian astronomer. He is a prolific discoverer of asteroids. more » |
 | Antony Hewish FRS is a British radio astronomer who won the Nobel Prize for Physics in 1974 for... more » |
| Anvari, full name Awhad ad-Din 'Ali ibn Mohammad Khavarani or Awhad ad-Din 'Ali ibn Mahmud was a... more » |
 | Archimedes of Syracuse was a Greek mathematician, physicist, engineer, inventor, and astronomer... more » |
.jpeg/168px-Aristarchos_von_Samos_(Denkmal).jpeg "Aristarchus of Samos") | Aristarchus of Samos was an ancient Greek astronomer and mathematician who presented the first... more » |
| Arjen Roelofs was a Dutch astronomer. more » |
 | Armin Otto Leuschner was an American astronomer and educator. Leuschner was born in the US but... more » |
 | Arno Allan Penzias is an American physicist, radio astronomer and Nobel laureate in physics who... more » |
| Arthur Arno Wachmann was a German astronomer. With Arnold Schwassmann he co-discovered the... more » |
 | Ernst Arnold Kohlschütter was a German astronomer and astrophysicist from Halle. In 1908 he was... more » |
| Arnold Richard Klemola è un astronomo statunitense. Lavora presso il Lick Observatory; ha... more » |
.jpg/182px-Arthur_Auwers_1884_Theodor_Prumm_Prumm_Theodor_btv1b8452873q_(cropped).jpg "Arthur Auwers") | Georg Friedrich Julius Arthur von Auwers was a German astronomer. Auwers was born in Göttingen... more » |
| Arthur Robert Hogg was an Australian physicist and astronomer. He was born in Melbourne,... more » |
| Sir Arthur Stanley Eddington, OM, FRS was a British astronomer, physicist, and mathematician of... more » |
| Arthur Stanley Williams was an English solicitor and amateur astronomer. He dedicated himself to... more » |
| Asada Gōryū was a Japanese astronomer who helped to introduce modern astronomical instruments... more » |
 | Asaph Hall III was an American astronomer who is most famous for having discovered the moons of... more » |
| Atsuo Asami is a Japanese astronomer. He operates a small private observatory, Hadano... more » |
| Atsushi Sugie is a Japanese astronomer. He works at the Dynic Astronomical Observatory and has... more » |
